Pneumatic stacker



2 Sheiets-Sheet 1. G. A. RAAS-GH 8.1.11. FAHRMEIER.

(No Model.)

- PNEUMATIG STAGKBR'. Y N0. 525,281.

UNITED STATES PATENT OFFICE.

GUSTAVUSA. yRAASCH AND HENRY FAHRMEIER, OF HIGGINSVILLE,

. MISSOURI. K

PNEUMATIC STACKER.

SPECIFICATION forming part of Letters Patent No. 525,281, dated August28, 1894.

Application filed March 23, 1894.

To @ZZ whom it may concern.-

Beit known that we, GUsTAvUs A. RAAscH and HENRY FAHRMEIEm ofHigginsville, in the county of Lafayette and State of Missouri, haveinvented certain new and useful Improvements in Pneumatic Stackers; andwe do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it pertains to make and use it, reference being had to theaccompanying drawings, which form part of this specification.

Our invention relates to an improvement in pneumatic stackers; and itconsists in the novel features of construction hereinafter fullydescribed and claimed, and illustratedv in the accompanying drawings,inwhich- Figure 1 is a perspective view of our improved machine. Fig. 2is a rear elevation of the same. Fig. 3 is a sectional view of the tubeoscillating mechanism. Fig. 4 isa vertical sectional view.

The object of our invention is to construct an improved stacker havingan oscillating tube for discharging the material evenly from one end ofthe stack to the other; and a further object is to so arrange the tubeoperating mechanism that the movement of the tube will be reversedautomatically when its limit in either direction has been reached. Thestacker consists of a hopperA in which is suitably journaled the shaftB', carrying the spiral and leaning conveyer blades B. Upon one end ofshaft B' is fan C which rotates in casing D at one end of the hopper,the hopper and casing communicating through opening D. The said casingextends upward as shown and upon its top end is a flanged bearing ring Ein which is seated the lower flanged end F of tube G.

Secured to the base of the tube is the cogged segment H which is engagedand operated by the worm gear I which is mounted on the hollow shaft J.The latter is suitably j ournaled in bearings as shown which extend fromthe hopper. Extended through said shaft is rod K which is connected atits, inner end with sleeve L on said shaft, the connection beingeifected through slot J of the latter. The sleeve L is grooved as lshownand embraced Serial No. 504,847. (No model.)

by yoke M from which projects stud M which extends into curved slot N'of arm N. This arm is pivotally supported at its lower end as shownwhile atgits upper end it carries Weight O.

Projecting from the upper side of segment H are the pins P and extendinginward from arm N is the arm P', so that as the segment is rotated bythe worm gear beforedescribed one of the pins will engage arm'P' andthrow the lever tothe opposite side, thus shifting sleeve L and with itrod K for the purpose of reversing the movement of shaft J and tube G inthe manner now to be explained.

Loosely journaled upon the outer end of shaft J are the band wheels Q,Q. From the former leads the straight belt to a band wheel on shaft B ofthe conveyer, while from wheel Q' leads the crossed belt to anotherwheel on same shaft. Arranged between the wheels Q, Q' for the purposeof holding them apart is the collar R and beneath it the shaft J isSlotted as at R', and projecting through this slot from rod K is the lugS. On the adjacent sides of the wheels Q, Q are the stops T, one ofwhich is engaged by lug S when arm N is in one position while the otherstop and band wheel are engaged when the position of the said arm isreversed. The said wheels are loose on the shaft and only engage so asto rotate the same when connected in the manner just described.

As the wheels are driven in opposite directions it will be understoodthat the direction of rotation of the shaft will be changed each timethe arm N is thrown and this latter only occurs when the tube G hasreached the end of its oscillation. 4 i

The pins P on segment H may be arranged any desired distance apart,according to the throw which it is desired the tube shall have.

In operation the material to be stacked is placed in the hopperA fromwhich it will be carried by the screw conveyer into casing D, in whichit is forced upward by the fan C and through tube G to the stack. Theouter end of the latter is turned and the same is oscillated in-themanner described to distribute the material evenly over the stack whichis discharging therefrom.

Having thus fully described our invention, what we claim as new, anddesire to secure by Letters Patent, is-

1. The combination of an oscillating conveyer tube, a hollow shaft foractuating it, opposite movable band-wheels on the shaft, a rod withinthe tube which is adapted to be thrown automatically by the conveyertube, and a means for alternately clutching the said band-wheels withthe rod, substantially as shown and described.

2. The combination of an oscillatory conveyer tube carrying a coggedsegment, a shaft, means for propelling the saine in reverse directions,a gear on the shaft for engaging the segment, a rod for changing thedirection of rotation of the shaft, a slotted arm pivoted at its lowerend and weighted at its upper end, a yoke in which the rod revolves andwhich extends into the slot of the arm, and stops movable with the tubewhich throw the arm, thereby moving longitudinally the said rod,substantially as shown and described.

3. The combination of an oscillatory conveyer tube carrying a coggedsegment, a hollow shaft formed with a slot, a means for propelling thesame in reverse directions, a gear on the shaft for engaging thesegment, a longitudinally movable rod within the shaft for changing itsdirection of rotation, a movable collar on the shaft which is connectedto the rod through the slot in the shaft, a yoke .in which the collarrevolves, a slotted arm pivoted atits lower end and weighted at itsupper and into the slot of which the said yoke extends, and pins orstops movable with the tube for throwing the arm, thereby movinglongitudinally the said rod, substantially as shown and described.

4. The combination of an oscillatory conveyer tube, a hollow shaft foractuating it, oppositely movable band wheels on the shaft, alongitudinally movable rod within the shaft adapted to be thrownautomatically by the tube, a lug on the rod which projects through aslot in the shaft and which is adapted to clutch with one or the otherof the said wheels, substantially as shown and described.

5. The combination of an oscillatory conveyer tube, a hollow shaft foractuating it, oppositely movable band wheels on the shaft, alongitudinally movable rod within the shaft adapted to be thrownautomatically by the tube, a collar arranged between the said wheels,projections on the adjacent sides of the latter, and a lug on the rodwhich projects through a slot in the shaft and which is adapted toengage either one or the other of the wheel projections, substantiallyas shown and described.

In testimony whereof we affix our signatures in presence of twowitnesses.

GUSTAVUS A. RAASCH. HENRY FAI-IRMEIER.

Witnesses:

GEO. W. STEALY, WILLIAM PAULING.

